The game is set in 1789 in Paris, during the French Revolution. The economic depression has made people's lives miserable. Hunger, poverty and riots filled every corner of the city, but the nobles still lived a happy life.
Assassin's Creed: Introduction to the Great Revolution.
In Assassin's Creed: The Great Revolution, players can see many wandering NPCs in the town. They don't have any special features, and they don't talk to players. They exist as civilians in towns, and players may use them in some missions.
In addition, the enemy soldiers in the game are also a kind of NPC. They always patrol the safe area in groups, and players can kill them. Enemy soldiers are divided into thick soldiers, surveillance soldiers, search soldiers, defense soldiers and officers.